CN109897576B - Deep embossing paper-plastic composite water-based adhesive and preparation method thereof - Google Patents
Deep embossing paper-plastic composite water-based adhesive and preparation method thereof Download PDFInfo
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Abstract
The invention relates to the technical field of water-based adhesives, in particular to a deep embossing paper-plastic composite water-based adhesive and a preparation method thereof, wherein a monomer dropping liquid is prepared from 20-33 parts by weight of deionized water, 0.4-1.5 parts by weight of a reactive emulsifier, 40-50 parts by weight of an acrylate monomer mixture, 5-15 parts by weight of a long carbon chain acrylate monomer, 2-8 parts by weight of hydroxyethyl acryloyl urea and 0.2-0.6 part by weight of an initiator; preparing a kettle bottom solution from 30-42 parts of deionized water, 0.1-0.5 part of reactive emulsifier and 0.1-0.2 part of initiator; then, part of monomer dropping liquid is dropped into the kettle bottom liquid to prepare seed emulsion, and then the rest monomer dropping liquid is dropped and reacted under specific process conditions to obtain the product. The water-based adhesive is applied to a paper-plastic composite product and subjected to deep embossing, and can be stored for 120 hours under the conditions of high temperature and high humidity of 50 ℃ and 85 percent of relative humidity without generating white spots, foaming and degumming.
Description
Technical Field
The invention relates to the technical field of water-based adhesives, in particular to a deep embossing paper-plastic composite water-based adhesive and a preparation method thereof.
Background
The paper-plastic composite technology is a post-printing processing technology which utilizes an adhesive to be coated on a BOPP or PET film and then is compounded with a paper printed matter, integrates the advantages of paper and plastic, enables the surface of the printed matter to be brighter and smoother, has brighter and more stereoscopic impression in color, simultaneously plays roles in moisture prevention, pollution prevention, anti-counterfeiting, folding resistance, wear resistance and the like, and is widely applied to decorative building materials, packaging materials, hardcover books, product propaganda advertisements or specifications and the like.
With the further development of economy, some packaging products often require the application of deep embossing processes after paper-plastic compounding. The deep embossing is used as a special process for surface finishing processing of packaging decoration printed matters, so that the quality grade of product packaging can be improved, the artistic level of the printed matters is improved, and the packaging is attractive and decorative. The deep embossing process enables the product to generate a new appearance effect, has an anti-counterfeiting function and increases the high added value of the product. Therefore, the packaging material plays a very important role in the product sale, particularly attracts consumers, meets the mental demands of the consumers, consolidates brands and enterprise images, and is increasingly adopted by more packages.
About 95 percent of adhesives used in paper-plastic composite in the market are single-component water-based acrylate emulsion adhesives. The general single-component acrylate emulsion adhesive is easy to generate foaming or degumming phenomenon when being subjected to deep embossing treatment after paper-plastic compounding, and is difficult to meet the application. The monocomponent acrylate emulsion adhesive with better quality is subjected to deep embossing treatment after paper-plastic compounding, although the defect of air bubbles or degumming can not occur, the monocomponent acrylate emulsion adhesive can generate white point foaming or degumming phenomenon after being stored for 120 hours under the weather-resistant conditions of high temperature and high humidity (usually 50 ℃ and 85 percent of relative humidity). And the product meets the basic requirement that the product in the paper-plastic composite package is exported under the condition of marine transportation when stored for more than 120 hours under the condition of high temperature and high humidity. In order to meet the requirement that the high-grade product paper-plastic composite packaging subjected to deep embossing treatment can meet the weather-resistant storage requirement of high temperature and high humidity, a plurality of composite manufacturers add about 1.5-2% of polyaziridine curing agent into an acrylate emulsion adhesive for crosslinking reaction, and use the paper-plastic composite adhesive as a bi-component product. Although the introduction of the polyaziridine curing agent can enhance the bonding strength of the acrylate emulsion adhesive and meet the weather-resistant storage requirement of the deep embossing paper-plastic composite product, the method also has some disadvantages: 1) the curing agent needs to be added and fully stirred before use, so that the application is inconvenient; 2) after the curing agent is added, the adhesive has a certain working life, and is easy to waste when not used up on time; 3) aziridine curing agents have some toxicity. Therefore, the market needs to develop a novel single-component water-based acrylate emulsion adhesive to improve the emulsion cohesion, improve the temperature resistance, water resistance, crosslinking density and wet adhesion after film formation, so that the adhesive can meet the requirements of 50 ℃ temperature and no white spot, no foaming and no degumming after being stored for 120 hours at 85% relative humidity after being applied to a paper-plastic composite product and subjected to deep embossing.
Disclosure of Invention
The invention aims to provide a deep-embossing paper-plastic composite water-based adhesive and a preparation method thereof aiming at the defects in the prior art, and the water-based adhesive can be stored for 120 hours under the conditions of high temperature and high humidity of 50 ℃ and 85 percent of relative humidity without generating white spots, foaming and degumming after being applied to a paper-plastic composite product subjected to deep embossing.
The purpose of the invention is realized by the following technical scheme:
the deep embossing paper-plastic composite water-based adhesive is prepared from the following raw materials in parts by weight:
preferably, the deep embossing paper-plastic composite water-based adhesive is prepared from the following raw materials in parts by weight:
preferably, the reactive emulsifier is one or two of dialkyl sulfosuccinate salt containing double bond groups, sodium allyl ether sulfonate and sodium vinyl sulfonate.
More preferably, the dialkyl sulfosuccinate salt containing a double bond is a product of Shanghai loyal Fine chemical Co., Ltd, model No. NRS-138 or M-20S; the sodium allyl ether sulfonate is a product of Sipomer COPS-1 of Solvay company; the sodium vinyl sulfonate is a product of the GeROPON SVS-25 of Solvay.
Preferably, the acrylate monomer mixture is prepared by compounding a hard monomer, a soft monomer and a carboxyl monomer, wherein: the hard monomer is methyl methacrylate or isobornyl methacrylate, the soft monomer is one or two of butyl acrylate, isooctyl acrylate, ethyl acrylate and methyl acrylate, and the carboxyl monomer is methacrylic acid or acrylic acid.
Preferably, the long carbon chain acrylate monomer is one or two of stearyl methacrylate, stearyl acrylate, behenyl acrylate and behenyl methacrylate.
More preferably, the long carbon chain acrylate monomer is selected from one or two of the commercial products manufactured by BASF corporation of Germany under the model numbers SMA1618F, SA1618F, BEA18-22F and BEMA 18-22F.
Preferably, the hydroxyethyl acrylurea monomer is a product of type SW910 of Sanwang chemical materials, Inc. of Guangzhou or type GY-825 of Source siliconization chemical industries, Inc. of Guangzhou.
Preferably, the initiator is ammonium persulfate or potassium persulfate; the wetting agent is a zwitterionic nonionic ethoxy fatty alcohol wetting agent Surten W111 of Degussa company; the defoaming agent is a high-efficiency long-acting mineral oil-based water-based defoaming agent Defoam 639A of Neutermei company.
The invention also provides a preparation method of the deep embossing paper-plastic composite water-based adhesive, which comprises the following steps:
step S1, taking 20-33 parts by weight of deionized water, 0.4-1.5 parts by weight of reactive emulsifier, 40-50 parts by weight of acrylate monomer mixture, 5-15 parts by weight of long carbon chain acrylate monomer and 2-8 parts by weight of hydroxyethyl acryloyl urea monomer for pre-emulsification to obtain monomer pre-emulsion, then adding 0.2-0.6 part by weight of initiator, and uniformly stirring to obtain monomer dropping liquid;
step S2, adding 30-42 parts by weight of deionized water, 0.1-0.5 part by weight of reactive emulsifier and 0.1-0.2 part by weight of initiator into a reaction kettle, and uniformly stirring to obtain a kettle bottom liquid;
step S3, heating the kettle bottom liquid to 70-75 ℃, beginning to dropwise add monomer dropping liquid into the kettle bottom liquid, controlling 1/10 of the total amount of the monomer dropping liquid to be dropwise added within 4-6 minutes, and then carrying out heat preservation reaction for 25-30 minutes to prepare seed emulsion;
step S4, heating to 75-80 ℃, beginning to dropwise add the residual 9/10 monomer dropwise adding liquid into the seed emulsion, and controlling the dropwise adding for 3-3.5 hours to be finished; after the dropwise addition is finished, controlling the temperature to be 85-88 ℃ and carrying out heat preservation reaction for 55-60 minutes;
and S5, cooling to 45-50 ℃, adding a proper amount of ammonia water to adjust the pH value to 6.5-7.5, then adding 0.5-1.0 part by weight of wetting agent and 0.1-0.5 part by weight of defoaming agent, uniformly stirring, filtering with a filter screen of 210 meshes, and discharging to obtain the deep embossing paper-plastic composite water-based adhesive.
The invention has the beneficial effects that:
the invention relates to a deep embossing paper-plastic composite water-based adhesive, which is prepared by 20-33 parts of deionized water, 0.4-1.5 parts of reactive emulsifier, 40-50 parts of acrylate monomer mixture, 5-15 parts of long carbon chain acrylate monomer, 2-8 parts of hydroxyethyl acryloyl urea and 0.2-0.6 part of initiator according to parts by weight; preparing a kettle bottom solution from 30-42 parts by weight of deionized water, 0.1-0.5 part by weight of a reactive emulsifier and 0.1-0.2 part by weight of an initiator; then, under the conditions of specific temperature and the like, dropwise adding part of monomer dropping liquid into the kettle bottom liquid to prepare seed emulsion, dropwise adding the rest of monomer dropping liquid, adjusting the pH value to 6.5-7.5 after the reaction is finished under certain conditions, finally adding 0.5-1.0 part by weight of wetting agent and 0.1-0.5 part by weight of defoaming agent, and filtering and discharging to obtain the deep embossing paper-plastic composite water-based adhesive. Compared with the prior art, the invention has the following advantages:
(1) the long carbon chain acrylate monomer is introduced, so that the emulsion has lower vitrification temperature and strong initial viscosity, but the long carbon chain acrylate monomer can be used as a hydrophobic functional monomer to ensure that an emulsion adhesive film is soft and has strong cohesive force;
(2) the hydroxyethyl acrylurea monomer introduced by the invention has a special molecular structure and high reactivity, can improve the colloidal particle structure of a system, can enhance the intermolecular force of hydrogen bonds, and improves the temperature resistance, water resistance, cohesion and wet adhesion of emulsion film forming;
(3) the water-based adhesive disclosed by the invention can be applied to a paper-plastic composite product and can be stored for 120 hours at the temperature of 50 ℃ and the relative humidity of 85% without the problems of white spots, foaming and degumming after being deeply embossed, so that the problems in the prior art are solved.
Detailed Description
The invention is further described with reference to the following examples.
Example 1:
the deep embossing paper-plastic composite water-based adhesive is prepared by the following steps (the following components are calculated in parts by weight):
step S1, pre-emulsifying 20 parts of deionized water, 1.0 part of reactive emulsifier, 45 parts of acrylate monomer mixture, 5 parts of long carbon chain acrylate monomer and 4 parts of hydroxyethyl acryloyl urea monomer to obtain monomer pre-emulsion, adding 0.2 part of initiator, and uniformly stirring to obtain monomer dropping liquid;
step S2, adding 30 parts of deionized water, 0.2 part of reactive emulsifier and 0.15 part of initiator into a reaction kettle, and uniformly stirring to obtain kettle bottom liquid;
step S3, heating the kettle bottom liquid to 75 ℃, beginning to dropwise add monomer dropping liquid into the kettle bottom liquid, controlling the total amount of the dropwise added monomer dropping liquid to be 1/10 minutes, and then carrying out heat preservation reaction for 30 minutes to prepare seed emulsion;
step S4, heating to 80 ℃, beginning to dropwise add the residual 9/10 monomer dropwise adding liquid into the seed emulsion, and controlling the dropwise adding for 3 hours to be finished; after the dropwise addition is finished, the temperature is controlled to be 88 ℃ for heat preservation reaction for 55 minutes;
and S5, cooling to 50 ℃, adding a proper amount of ammonia water to adjust the pH value to 6.5, then adding 1.0 part by weight of wetting agent and 0.1 part by weight of defoaming agent, stirring uniformly, filtering by using a 190-mesh filter screen, and discharging to obtain the deep embossing paper-plastic composite water-based adhesive.
In the embodiment, the reactive emulsifier is prepared by compounding allyl ether sulfonic acid sodium salt and vinyl sulfonic acid sodium salt according to the mass ratio of 3: 2. Preferably, the sodium salt of an allyl ether sulfonic acid is selected from the group consisting of the commercial products of Solvay, model Sipomer COPS-1; the sodium vinyl sulfonate salt is selected from the group consisting of the commercial products of Solvay, model number GERONN SVS-25.
In the embodiment, the acrylate monomer mixture is prepared by compounding a hard monomer isobornyl methacrylate, a soft monomer ethyl acrylate and a carboxyl monomer methacrylic acid according to a mass ratio of 6:1: 4.
In this example, the long carbon chain acrylate monomer is stearyl acrylate, preferably selected from the group consisting of the commercial products available under model number SA1618F from BASF, germany.
In this example, the hydroxyethyl acrylurea monomer is a commercial product of model GY-825 available from Guangzhou silicon chemical Co., Ltd.
In this example, the initiator was potassium persulfate.
The wetting agent is a zwitterionic nonionic ethoxylated fatty alcohol wetting agent Surten W111 from Degussa.
The antifoaming agent is efficient long-acting mineral oil-based water-based antifoaming agent Defoam 639A of Netteme.
Example 2:
the deep embossing paper-plastic composite water-based adhesive is prepared by the following steps (the following components are calculated in parts by weight):
step S1, pre-emulsifying 30 parts of deionized water, 1.5 parts of reactive emulsifier, 50 parts of acrylate monomer mixture, 10 parts of long carbon chain acrylate monomer and 8 parts of hydroxyethyl acryloyl urea monomer to obtain monomer pre-emulsion, adding 0.5 part of initiator, and uniformly stirring to obtain monomer dropping liquid;
step S2, adding 40 parts of deionized water, 0.5 part of reactive emulsifier and 0.1 part of initiator into a reaction kettle, and uniformly stirring to obtain kettle bottom liquid;
step S3, heating the kettle bottom liquid to 70 ℃, beginning to dropwise add monomer dropping liquid into the kettle bottom liquid, controlling 1/10 of the total amount of the monomer dropping liquid to be dropwise added within 6 minutes, and then carrying out heat preservation reaction for 25 minutes to prepare seed emulsion;
step S4, heating to 75 ℃, beginning to dropwise add the residual 9/10 monomer dropwise adding liquid into the seed emulsion, and controlling the dropwise adding for 3.5 hours to be finished; after the dropwise addition is finished, the temperature is controlled to be 85 ℃ for heat preservation reaction for 60 minutes;
and S5, cooling to 45 ℃, adding a proper amount of ammonia water to adjust the pH value to 7.5, then adding 0.5 part by weight of wetting agent and 0.3 part by weight of defoaming agent, uniformly stirring, filtering by using a 205-mesh filter screen, and discharging to obtain the deep embossing paper-plastic composite water-based adhesive.
In this example, the reactive emulsifier is allyl ether sulfonic acid sodium salt, preferably, the allyl ether sulfonic acid sodium salt is selected from Sipomer COPS-1 from Solvay.
In this embodiment, the acrylate monomer mixture is prepared by compounding a hard monomer methyl methacrylate, a soft monomer methyl acrylate, and a carboxyl monomer acrylic acid in a ratio of 1:4: 1.
In this example, the long carbon chain acrylate monomer is behenyl acrylate, which is preferably selected from the group consisting of the commercial products available under model number BEA18-22F from BASF, Germany.
In this example, the hydroxyethyl acrylurea monomer is a commercial product of model GY-825 available from Guangzhou silicon chemical Co., Ltd.
In this example, the initiator is ammonium persulfate.
The wetting agent is a zwitterionic nonionic ethoxylated fatty alcohol wetting agent Surten W111 from Degussa.
The antifoaming agent is efficient long-acting mineral oil-based water-based antifoaming agent Defoam 639A of Netteme.
Example 3:
the deep embossing paper-plastic composite water-based adhesive is prepared by the following steps (the following components are calculated in parts by weight):
step S1, taking 26 parts of deionized water, 0.5 part of reactive emulsifier, 48 parts of acrylate monomer mixture, 7 parts of long carbon chain acrylate monomer and 6 parts of hydroxyethyl acryloyl urea monomer for pre-emulsification to obtain monomer pre-emulsion, then adding 0.3 part of initiator, and uniformly stirring to obtain monomer dropping liquid;
step S2, adding 35 parts of deionized water, 0.4 part of reactive emulsifier and 0.12 part of initiator into a reaction kettle, and uniformly stirring to obtain kettle bottom liquid;
step S3, heating the kettle bottom liquid to 72 ℃, beginning to dropwise add monomer dropping liquid into the kettle bottom liquid, controlling the total amount of the dropwise added monomer dropping liquid to be 1/10 minutes, and then carrying out heat preservation reaction for 26 minutes to prepare seed emulsion;
step S4, heating to 77 ℃, beginning to dropwise add the residual 9/10 monomer dropwise adding liquid into the seed emulsion, and controlling the dropwise adding for 3.2 hours to finish; after the dropwise addition is finished, the temperature is controlled to be 86 ℃ for heat preservation reaction for 57 minutes;
and S5, cooling to 47 ℃, adding a proper amount of ammonia water to adjust the pH value to 6.9, then adding 0.7 part by weight of wetting agent and 0.2 part by weight of defoaming agent, uniformly stirring, filtering by using a 210-mesh filter screen, and discharging to obtain the deep embossing paper-plastic composite water-based adhesive.
In this embodiment, the reactive emulsifier is a dialkyl sulfosuccinate salt, preferably, the dialkyl sulfosuccinate salt is selected from the group consisting of Shanghai loyalty Fine chemical Co., Ltd, model M-20S.
In the embodiment, the acrylate monomer mixture is prepared by compounding a hard monomer methyl methacrylate, a soft monomer ethyl acrylate and a carboxyl monomer methacrylic acid according to a mass ratio of 5:1: 2.
In the embodiment, the long carbon chain acrylate monomer is formed by compounding behenyl acrylate and behenyl methacrylate according to the mass ratio of 4: 1. As a preferred embodiment, the behenyl acrylate is selected from the group consisting of the commercial products available under the model number BEA18-22F from BASF corporation, Germany; the behenyl methacrylate is selected from the group consisting of the commercial products available under model number BEMA18-22F from BASF corporation of China.
In this example, the hydroxyethyl acrylurea monomer is a product of type SW910 of sanwang chemical materials ltd, guangzhou.
In this example, the initiator was potassium persulfate.
The wetting agent is a zwitterionic nonionic ethoxylated fatty alcohol wetting agent Surten W111 from Degussa.
The antifoaming agent is efficient long-acting mineral oil-based water-based antifoaming agent Defoam 639A of Netteme.
Example 4:
the deep embossing paper-plastic composite water-based adhesive is prepared by the following steps (the following components are calculated in parts by weight):
step S1, taking 33 parts of deionized water, 0.4 part of reactive emulsifier, 40 parts of acrylate monomer mixture, 15 parts of long carbon chain acrylate monomer and 2 parts of hydroxyethyl acryloyl urea monomer for pre-emulsification to obtain monomer pre-emulsion, then adding 0.6 part of initiator, and uniformly stirring to obtain monomer dropping liquid;
step S2, adding 42 parts of deionized water, 0.1 part of reactive emulsifier and 0.2 part of initiator into a reaction kettle, and uniformly stirring to obtain a kettle bottom solution;
step S3, heating the kettle bottom liquid to 73 ℃, beginning to dropwise add monomer dropping liquid into the kettle bottom liquid, controlling the total amount of the monomer dropping liquid to be 1/10 minutes, and then carrying out heat preservation reaction for 29 minutes to prepare seed emulsion;
step S4, heating to 78 ℃, beginning to dropwise add the residual 9/10 monomer dropwise adding liquid into the seed emulsion, and controlling the dropwise adding for 3.4 hours to be finished; after the dropwise addition is finished, the reaction is carried out for 58 minutes under the condition of keeping the temperature at 87 ℃;
and S5, cooling to 48 ℃, adding a proper amount of ammonia water to adjust the pH value to 7.3, then adding 0.8 part by weight of wetting agent and 0.5 part by weight of defoaming agent, uniformly stirring, filtering by using a 200-mesh filter screen, and discharging to obtain the deep embossing paper-plastic composite water-based adhesive.
In this example, the reactive emulsifier is the sodium vinyl sulfonate, which is preferably a commercial product of the GeROPON SVS-25 available from Solvay.
In the embodiment, the acrylate monomer mixture is prepared by compounding a hard monomer isobornyl methacrylate, a soft monomer isooctyl acrylate and a carboxyl monomer acrylic acid according to a mass ratio of 1:1: 3.
In the embodiment, the long carbon chain acrylate monomer is formed by compounding octadecyl acrylate and docosyl acrylate according to the mass ratio of 1: 2. As a preferred embodiment, octadecyl acrylate is a commercial product having the model SA1618F, BASF, Germany, and docosyl acrylate is a commercial product having the model BEA18-22F, BASF, Germany.
In this example, the hydroxyethyl acrylurea monomer is a commercial product of model GY-825 available from Guangzhou silicon chemical Co., Ltd.
In this example, the initiator was potassium persulfate.
The wetting agent is a zwitterionic nonionic ethoxylated fatty alcohol wetting agent Surten W111 from Degussa.
The antifoaming agent is efficient long-acting mineral oil-based water-based antifoaming agent Defoam 639A of Netteme.
Example 5:
the deep embossing paper-plastic composite water-based adhesive is prepared by the following steps (the following components are calculated in parts by weight):
step S1, pre-emulsifying 22 parts of deionized water, 0.7 part of reactive emulsifier, 46 parts of acrylate monomer mixture, 9 parts of long carbon chain acrylate monomer and 7 parts of hydroxyethyl acryloyl urea monomer to obtain monomer pre-emulsion, adding 0.3 part of initiator, and uniformly stirring to obtain monomer dropping liquid;
step S2, adding 38 parts of deionized water, 0.3 part of reactive emulsifier and 0.13 part of initiator into a reaction kettle, and uniformly stirring to obtain kettle bottom liquid;
step S3, heating the kettle bottom liquid to 74 ℃, beginning to dropwise add monomer dropping liquid into the kettle bottom liquid, controlling the total amount of the monomer dropping liquid to be 1/10 in 5.5 minutes, and then carrying out heat preservation reaction for 27 minutes to prepare seed emulsion;
step S4, heating to 77 ℃, beginning to dropwise add the residual 9/10 monomer dropwise adding liquid into the seed emulsion, and controlling the dropwise adding for 3.3 hours to finish; after the dropwise addition is finished, the reaction is carried out for 58 minutes under the condition of heat preservation at the temperature of 85-88 ℃;
and S5, cooling to 49 ℃, adding a proper amount of ammonia water to adjust the pH value to 7.2, then adding 0.9 part by weight of wetting agent and 0.2 part by weight of defoaming agent, uniformly stirring, filtering by using a 200-mesh filter screen, and discharging to obtain the deep embossing paper-plastic composite water-based adhesive.
In the embodiment, the reactive emulsifier is prepared by compounding dialkyl sulfosuccinate salt containing double bond groups and allyl ether sodium sulfonate according to the mass ratio of 3: 2. As a preferred embodiment, the dialkyl sulfosuccinate salt is a Shanghai loyalty Fine chemical Co., Ltd, model NRS-138, and the allyl ether sulfonic acid sodium salt is Solvay, model Sipomer COPS-1.
In the embodiment, the acrylate monomer mixture is prepared by compounding a hard monomer methyl methacrylate, a soft monomer butyl acrylate and a carboxyl monomer methacrylic acid according to a mass ratio of 2:2: 1.
In this example, the long carbon chain acrylate monomer was stearyl methacrylate, model SMA1618F, manufactured by BASF, germany. The hydroxyethyl acrylurea monomer is a product of type SW910 of Sanwang chemical materials, Inc., Guangzhou.
In this example, the initiator is ammonium persulfate.
The wetting agent is a zwitterionic nonionic ethoxylated fatty alcohol wetting agent Surten W111 from Degussa.
The antifoaming agent is efficient long-acting mineral oil-based water-based antifoaming agent Defoam 639A of Netteme.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the true spirit and scope of the present invention.
Claims (8)
1. The deep embossing paper-plastic composite water-based adhesive is characterized in that: the feed is prepared from the following raw materials in parts by weight:
the acrylate monomer mixture is prepared by compounding a hard monomer, a soft monomer and a carboxyl monomer, wherein: the hard monomer is methyl methacrylate or isobornyl methacrylate, the soft monomer is one or two of butyl acrylate, isooctyl acrylate, ethyl acrylate and methyl acrylate, and the carboxyl monomer is methacrylic acid or acrylic acid;
the long carbon chain acrylate monomer is one or two of stearyl methacrylate, stearyl acrylate, behenyl acrylate and behenyl methacrylate.
2. The deep embossing paper-plastic composite water-based adhesive as claimed in claim 1, wherein: the feed is prepared from the following raw materials in parts by weight:
3. the deep embossing paper-plastic composite water-based adhesive as claimed in claim 1, wherein: the reactive emulsifier is one or two of dialkyl sulfosuccinate salt containing double bond groups, allyl ether sodium sulfonate and vinyl sulfonic acid sodium salt.
4. The deep embossing paper-plastic composite water-based adhesive as claimed in claim 3, wherein: the dialkyl sulfosuccinate salt containing the double bond group is a commodity of model NRS-138 or M-20S of Shanghai loyal fine chemical Co., Ltd; the sodium allyl ether sulfonate is a product of Sipomer COPS-1 of Solvay company; the sodium vinyl sulfonate is a product of the GeROPON SVS-25 of Solvay.
5. The deep embossing paper-plastic composite water-based adhesive as claimed in claim 1, wherein: the long carbon chain acrylate monomer is selected from one or two of the commodities of model SMA1618F, SA1618F, BEA18-22F and BEMA18-22F, manufactured by BASF company in Germany.
6. The deep embossing paper-plastic composite water-based adhesive as claimed in claim 1, wherein: the hydroxyethyl acrylurea monomer is a commodity of a model SW910 of Sanwang chemical materials, Inc. of Guangzhou or a model GY-825 of Source silicon chemical industries, Inc. of Guangzhou.
7. The deep embossing paper-plastic composite water-based adhesive as claimed in claim 1, wherein: the initiator is ammonium persulfate or potassium persulfate; the wetting agent is a zwitterionic nonionic ethoxy fatty alcohol wetting agent Surten W111 of Degussa company; the defoaming agent is a high-efficiency long-acting mineral oil-based water-based defoaming agent Defoam 639A of Neutermei company.
8. The method for preparing the deep embossing paper-plastic composite water-based adhesive as claimed in any one of claims 3 to 7, wherein the method comprises the following steps: the method comprises the following steps:
step S1, taking 20-33 parts by weight of deionized water, 0.4-1.5 parts by weight of reactive emulsifier, 40-50 parts by weight of acrylate monomer mixture, 5-15 parts by weight of long carbon chain acrylate monomer and 2-8 parts by weight of hydroxyethyl acryloyl urea monomer for pre-emulsification to obtain monomer pre-emulsion, then adding 0.2-0.6 part by weight of initiator, and uniformly stirring to obtain monomer dropping liquid;
step S2, adding 30-42 parts by weight of deionized water, 0.1-0.5 part by weight of reactive emulsifier and 0.1-0.2 part by weight of initiator into a reaction kettle, and uniformly stirring to obtain a kettle bottom liquid;
step S3, heating the kettle bottom liquid to 70-75 ℃, beginning to dropwise add monomer dropping liquid into the kettle bottom liquid, controlling 1/10 of the total amount of the monomer dropping liquid to be dropwise added within 4-6 minutes, and then carrying out heat preservation reaction for 25-30 minutes to prepare seed emulsion;
step S4, heating to 75-80 ℃, beginning to dropwise add the residual 9/10 monomer dropwise adding liquid into the seed emulsion, and controlling the dropwise adding for 3-3.5 hours to be finished; after the dropwise addition is finished, controlling the temperature to be 85-88 ℃ and carrying out heat preservation reaction for 55-60 minutes;
and S5, cooling to 45-50 ℃, adding a proper amount of ammonia water to adjust the pH value to 6.5-7.5, then adding 0.5-1.0 part by weight of wetting agent and 0.1-0.5 part by weight of defoaming agent, uniformly stirring, filtering with a filter screen of 210 meshes, and discharging to obtain the deep embossing paper-plastic composite water-based adhesive.
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| US5516865A (en) * | 1995-02-03 | 1996-05-14 | Minnesota Mining And Manufacturing Company | Waterborne (meth) acrylic latex polymers for release |
| EP0845518A4 (en) * | 1995-08-14 | 1999-08-11 | Kao Corp | Aqueous emulsion for pressure-sensitive adhesive and process for the preparation thereof |
| JP2000313863A (en) * | 1999-04-28 | 2000-11-14 | Toyo Ink Mfg Co Ltd | Emulsion type adhesive composition |
| CN104327219B (en) * | 2014-08-27 | 2017-02-22 | 武汉持欣科技有限公司 | Aqueous emulsion for basic binder of adhesive for hard-bonding materials and preparation method thereof |
| CN105969265A (en) * | 2016-05-26 | 2016-09-28 | 江阴市江泰高分子新材料有限公司 | High-performance waterborne pressure-sensitive adhesive and preparation method thereof and PE protective film |
| CN107779134A (en) * | 2016-08-26 | 2018-03-09 | 江苏国胶化学科技有限公司 | A kind of high water-borne pressure sensitive adhesive of cohesive strength |
| CN109266256B (en) * | 2018-09-29 | 2021-07-27 | 广州都邦材料科技有限公司 | Medical pressure-sensitive adhesive and preparation method thereof |
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2019
- 2019-02-28 CN CN201910150841.3A patent/CN109897576B/en active Active
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